Pvc Flexible Wire 3 Core in two sizes, 2.5mm x 3 Core & 1.5mm x 3 Core. Purpose: Insulated flexible cord cables - The British standard PVC cable is a low voltage flexible power supply wire and they are used in many household appliances such as refrigerators, washing machines and spin dryers. They are also used in portable tools and small indoor electrical instruments but they are generally unsuitable for outdoor use. The cable features a PVC insulation with a PVC outer sheath